<nav id="nav">
  <div class="top">
    <div class="logo" (click)="goHome()">
        <i class="logoIcon"></i>
        <span class="title">超级花名册
        </span>
    </div>
    <div class="search">
         <div class="title">搜索并加入班级</div>
      <div class="roll_search">
        <div class="roll_search_box">
          <input type="text" placeholder="班级名称/班级码/教师姓名"  [(ngModel)]="searchKey">
          <img src="../../assets/img/image/search.png" alt="" class="search_logo" (click)="search()" >
        </div>
      </div>
    </div>
  </div>
  <div class="menu">
    <nz-tabset [nzSelectedIndex]="routerIndex">
      <nz-tab nzTitle="我的班级" (nzClick)="routerMap(0)" >
      </nz-tab>
      <nz-tab nzTitle="加入班级" (nzClick)="routerMap(1)"  >
      </nz-tab>
    </nz-tabset>
  </div>
</nav>
